diff --git a/internal/shader/testdata/issue1245.expected.fs b/internal/shader/testdata/issue1245.expected.fs
index 60c2b318d..c24d63cd3 100644
--- a/internal/shader/testdata/issue1245.expected.fs
+++ b/internal/shader/testdata/issue1245.expected.fs
@@ -1,7 +1,7 @@
 void main(void) {
 	vec4 l0 = vec4(0);
 	for (float l1 = 0.0; l1 < 4.0; l1++) {
-		(l0).x = ((l0).x) + ((l1) * (1.000000000e-02));
+		(l0).x = ((l0).x) + ((l1) * (1.0000000000e-02));
 	}
 	gl_FragColor = l0;
 	return;
diff --git a/internal/shader/testdata/issue1245.expected.vs b/internal/shader/testdata/issue1245.expected.vs
index 988724832..1514fa55d 100644
--- a/internal/shader/testdata/issue1245.expected.vs
+++ b/internal/shader/testdata/issue1245.expected.vs
@@ -3,7 +3,7 @@ attribute vec2 A0;
 void main(void) {
 	vec4 l0 = vec4(0);
 	for (float l1 = 0.0; l1 < 4.0; l1++) {
-		(l0).x = ((l0).x) + ((l1) * (1.000000000e-02));
+		(l0).x = ((l0).x) + ((l1) * (1.0000000000e-02));
 	}
 	gl_Position = l0;
 	return;
diff --git a/internal/shader/testdata/number_binary.expected.vs b/internal/shader/testdata/number_binary.expected.vs
index 30cb9d236..8747b73be 100644
--- a/internal/shader/testdata/number_binary.expected.vs
+++ b/internal/shader/testdata/number_binary.expected.vs
@@ -7,9 +7,9 @@ void F0(out vec4 l0) {
 	float l3 = float(0);
 	float l4 = float(0);
 	l1 = 2;
-	l2 = 2.500000000e+00;
-	l3 = 2.500000000e+00;
-	l4 = 2.500000000e+00;
+	l2 = 2.5000000000e+00;
+	l3 = 2.5000000000e+00;
+	l4 = 2.5000000000e+00;
 	l0 = vec4(l1, l2, l3, l4);
 	return;
 }
@@ -20,9 +20,9 @@ void F1(out vec4 l0) {
 	float l3 = float(0);
 	float l4 = float(0);
 	l1 = 2;
-	l2 = 2.500000000e+00;
-	l3 = 2.500000000e+00;
-	l4 = 2.500000000e+00;
+	l2 = 2.5000000000e+00;
+	l3 = 2.5000000000e+00;
+	l4 = 2.5000000000e+00;
 	l0 = vec4(l1, l2, l3, l4);
 	return;
 }
diff --git a/internal/shaderir/glsl/glsl.go b/internal/shaderir/glsl/glsl.go
index 4b45b392a..2855b0109 100644
--- a/internal/shaderir/glsl/glsl.go
+++ b/internal/shaderir/glsl/glsl.go
@@ -262,7 +262,7 @@ func constantToNumberLiteral(t shaderir.ConstType, v constant.Value) string {
 		}
 		if i := constant.ToFloat(v); i.Kind() == constant.Float {
 			x, _ := constant.Float64Val(i)
-			return fmt.Sprintf("%.9e", x)
+			return fmt.Sprintf("%.10e", x)
 		}
 	case shaderir.ConstTypeInt:
 		if i := constant.ToInt(v); i.Kind() == constant.Int {
diff --git a/internal/shaderir/metal/metal.go b/internal/shaderir/metal/metal.go
index ed99227cf..6136ab226 100644
--- a/internal/shaderir/metal/metal.go
+++ b/internal/shaderir/metal/metal.go
@@ -268,7 +268,7 @@ func constantToNumberLiteral(t shaderir.ConstType, v constant.Value) string {
 		}
 		if i := constant.ToFloat(v); i.Kind() == constant.Float {
 			x, _ := constant.Float64Val(i)
-			return fmt.Sprintf("%.9e", x)
+			return fmt.Sprintf("%.10e", x)
 		}
 	case shaderir.ConstTypeInt:
 		if i := constant.ToInt(v); i.Kind() == constant.Int {